Spring Dell Byington (October 17, 1886 – September 7, 1971) was an American actress. Her career included a seven-year run on radio and television as the star of December Bride. She was a key MGM contract player appearing in films from the 1930s through the 1960s. In 1939, she was nominated for the Academy Award for Best Supporting Actress for her role as Penelope Sycamore in You Can't Take It with You.